First Lesson: Introduction of Earth Science

Its been 2 years i last studied science and as expected i already forgot a lot of things! Yesterday was the start of a whole new experience for me and i came prepared with my pen, paper and my mind that is ready to learn.  Our first lesson was about the introduction of Earth science. Our professor discussed briefly all the topics for this whole semester, and I want to share with you guys what I've learned.

Earth Science encompasses all sciences that seek to understand earth and all of its neighbors. Earth science includes, Geology- the study of the earth, Oceanography- the study of the ocean, Meteorology- the study of the atmosphere and the processes that produce weather, and Astronomy- the study of the universe. Most researcher conclude that the earth and the other planets are formed at the same time. As Earth formed, the decay of radioactive elements and heat from high velocity impacts caused temperature to increase.

The Earth has four major spheres and these are the Hydrosphere, Atmosphere, Biosphere and the Geosphere.The Hydrosphere is nearly 71% Earth surface and holds about 97% of Earth's water. The most prominent feature of the Hydrosphere is the ocean. The Atmosphere is the thin tenuous blanket of air, one half lies below 5.6 kilometers (3.5 miles). The Biosphere includes all life. And lastly is the Geosphere which consists of the Crust- thin, rocky outer layer, Mantle- thick layer of the earth located below the crust, and the Core- the innermost layer of the earth, located beneath the mantle. The earth's crust, mountains, volcanoes and earth quakes were consists of individual plates that interact with each other and the theory that proposes that was called Plate Tectonics.

In determining the location, Latitude is the distance of north of south of the equator, and Longitude distance is the east and west of the equator. Environment is the term that surrounds and influences organisms. Physical environment is the water, air, soil and rock. When it comes to our resources, it has two categories. The Renewable are the plants, energy water and the wind, and the Non- renewable that cannot be replenished in the future like the metals and fuels.

So that's the summary of our first lesson, i hope you could understand it clearly so that i can help you with your questions about earth science.

PS. All the things I've stated here comes from my Natural Science class with my professor Mr. Crisencio M. Paner and you can see the powerpoint that he used here. 

Keywords: Earth Science, Branches of Earth Science, Geology, Oceanography, Meteorology, Astronomy, Four major spheres, Hydrosphere, Atmosphere, Biosphere, Geosphere, Crust, Mantle, Core, Plate Tectonics, Latitude, Longitude, Environment, Physical environment, Resources, Renewable, Non-renewable